My Inquiry
My Account
Nexperia USA Inc. MMBZ27VAL,235
- Part No.:
- MMBZ27VAL,235
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MMBZ27VAL,235.pdf
- Description:
- TVS DIODE 22VWM 40VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,883
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MMBZ27VAL from Nexperia is a unidirectional double ESD protection diode in common-anode SOT23 configuration, designed for transient overvoltage protection of two signal lines. It delivers 30 kV contact ESD immunity (IEC 61000-4-2 Level 4), 40 W peak pulse power, and ≤60 pF capacitance - enabling high-speed data line protection in portable electronics interfaces.
For engineers reviewing the MMBZ27VAL datasheet, MMBZ27VAL pinout, MMBZ27VAL application, or MMBZ27VAL equivalent, key selection criteria include reverse standoff voltage (22 V), clamping voltage (40 V at 1 A), ultra-low leakage (5 nA), and dual-line protection topology in a 3-pin SOT23 package.
Technical Context
This device implements a common-anode dual-diode structure, allowing independent unidirectional protection of two signal lines referenced to ground - or bidirectional protection of a single line when used differentially. Its low 48–60 pF capacitance at 1 MHz ensures minimal signal integrity impact on USB, audio, or I²C lines.
The diode operates with a 27 V nominal breakdown voltage (25.65–28.35 V), 22 V reverse standoff rating, and clamps transients to ≤40 V under 1 A IEC 61643-321 10/1000 µs pulses - validated across −55 °C to +150 °C ambient range with junction temperature limited to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 22 V - maximum continuous operating voltage before conduction begins; defines safe signal swing margin for protected lines. |
| Breakdown Voltage | 27 V (typ), 25.65–28.35 V (min/max) - precise threshold where avalanche conduction initiates during ESD events. |
| Clamping Voltage | 40 V at 1 A - maximum voltage seen by protected circuit during standardized 10/1000 µs surge, limiting stress on downstream ICs. |
| Diode Capacitance | 48–60 pF at 1 MHz, 0 V bias - low enough to avoid signal degradation on high-speed interfaces like USB 2.0 or HDMI DDC lines. |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds industrial immunity requirements for handheld and peripheral ports. |
| Peak Pulse Power | 40 W (10/1000 µs waveform) - sustains energy dissipation without failure during multi-pulse ESD stress testing. |
| Leakage Current | 0.1–5 nA at 22 V - negligible DC loading on battery-powered signal paths, preserving standby current budgets. |
Pinout & Package
Encapsulated in a standard SOT23 (TO-236AB) plastic surface-mount package measuring 2.9 mm × 1.3 mm × 1.0 mm with 1.9 mm lead pitch, the MMBZ27VAL uses a 3-terminal common-anode configuration optimized for compact PCB layout near connectors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (Diode 1) | Connects to first signal line requiring unidirectional ESD protection; conducts when line voltage exceeds 22 V above ground. |
| 2 | Cathode (Diode 2) | Connects to second independent signal line; enables simultaneous protection of dual I/O paths without shared cathode routing. |
| 3 | Common Anode | Connected to system ground; serves as shared return path for both diodes during transient clamping events. |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode topology | Enables discrete protection of two unidirectional lines with single-component footprint and shared ground connection. |
| Low 48–60 pF capacitance | Maintains signal integrity on high-frequency interfaces (e.g., USB full-speed, I²C, audio codecs) without added RC delay. |
| 30 kV contact ESD immunity | Meets IEC 61000-4-2 Level 4 without external filtering - reduces need for secondary TVS or RC networks. |
| 40 W peak pulse power rating | Handles multiple ESD strikes or combined EFT/surge events without parametric shift or thermal runaway. |
| Ultra-low 5 nA max leakage | Preserves battery life in always-on sensor or accessory circuits; avoids false triggering in high-impedance analog inputs. |
Applications
| USB 2.0 Data Lines | Smartphone Audio Jacks |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 interfaces against user-handling ESD during cable insertion. IC Role / Device Role: Unidirectional clamping diode pair, each cathode tied to D+ and D−, anode grounded. Use Value: Prevents latch-up or gate oxide damage in USB transceivers while maintaining <100 pF total line capacitance for 480 Mbps compliance. |
Use Scenario: Shielding left/right channel and microphone sense lines in 3.5 mm TRRS jacks from repeated plug/unplug discharges. IC Role / Device Role: Dual-cathode ESD clamp isolating analog audio paths from chassis-ground transients. Use Value: Eliminates pop/click artifacts and ADC saturation during hot-plug events without degrading SNR or frequency response. |
| Industrial HMI Touch Panels | Wireless Headset Control Buttons |
|
Use Scenario: Safeguarding I²C-based touch controller interrupt and reset lines exposed on front-panel connectors. IC Role / Device Role: Common-anode dual diode suppressing ±8 kV HBM and ±30 kV contact ESD on low-voltage digital control signals. Use Value: Ensures reliable wake-from-sleep operation and prevents firmware lockup caused by transient-induced logic upset. |
Use Scenario: Protecting momentary push-button inputs (volume up/down, play/pause) on Bluetooth earbuds from finger-contact ESD. IC Role / Device Role: Single-device solution for two independent button lines sharing ground return, minimizing BOM count. Use Value: Reduces PCB area by 50% vs. two discrete SOD-323 diodes while maintaining <5 nA standby current per line. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5Z3.3T5G | Lower 3.3 V standoff; higher 100 pF capacitance; same SOT-523 package. | Better suited for 3.3 V logic rails but unsuitable for 22 V signal lines due to premature conduction. | Select only if protecting sub-5 V interfaces where tighter voltage margin is required. |
| TPD2E001DRYR | Dual-channel, 15 pF typical capacitance; integrated 10 Ω series resistors; X2SON package. | Provides RC-filtered protection ideal for high-speed differential pairs but adds propagation delay and DC resistance. | Prefer when signal integrity demands <20 pF and board space allows larger 1.0 mm × 0.8 mm footprint. |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, the MMBZ27VAL uniquely balances 22 V standoff, 48–60 pF capacitance, and SOT23 compatibility - making it optimal for mid-voltage (e.g., 18–24 V) analog/digital lines where low leakage and proven IEC 61000-4-2 performance are critical.
Availability
MMBZ27VAL is available at Aetrix Electronics and suitable for USB interface protection, smartphone accessory design, industrial HMI development, and wireless audio product manufacturing requiring stable component supply and long-term lifecycle support.
Supply support for MMBZ27VAL includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Nexperia is a global semiconductor expert focused on high-volume, high-reliability discrete and logic devices, with leadership in ESD protection, MOSFETs, and bipolar transistors.
The MMBZ27VAL belongs to Nexperia's low-capacitance ESD protection diode family, engineered specifically for robust, space-constrained protection of high-speed consumer and industrial signal lines without compromising signal fidelity.
FAQ
What is the maximum operating temperature for MMBZ27VAL?
The MMBZ27VAL has a specified junction temperature limit of 150 °C and an ambient operating range of −55 °C to +150 °C. Thermal resistance from junction to ambient is 460 K/W in free air, so power dissipation must be managed via PCB copper area and airflow to avoid exceeding Tj(max) under sustained surge conditions.
Can MMBZ27VAL protect bidirectional signal lines like RS-485?
No - the MMBZ27VAL is unidirectional and configured for common-anode operation, making it unsuitable for true bidirectional differential buses. It can protect one bidirectional line only when used with external biasing or in conjunction with a complementary device; RS-485 requires dedicated bidirectional TVS arrays such as PESD5V0S1BA.
How does MMBZ27VAL differ from single-diode ESD protectors like PESD5V0S1BA?
Unlike single-diode protectors, the MMBZ27VAL integrates two cathodes in one SOT23 package with a shared anode, enabling independent protection of two unidirectional lines. This eliminates routing complexity and saves PCB area versus two discrete devices, while maintaining identical electrical specs per channel.
Is MMBZ27VAL automotive-qualified?
No - per Nexperia's revision history, this part is explicitly marked non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls. For automotive applications, Nexperia offers the MMBZ27VAL-Q variant, which undergoes extended temperature cycling, humidity testing, and PPAP documentation.
MMBZ27VAL,235 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 22V (Max)
- Voltage - Breakdown (Min):
- 25.65V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 1A
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 48pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
MMBZ27VAL,235 FAQ
1.How can I place an order for MMBZ27VAL,235 through Aetrix?
Please submit a Request for Quotation (RFQ) for MMBZ27VAL,235 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MMBZ27VAL,235 reliable?
The price and inventory of MMBZ27VAL,235 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MMBZ27VAL,235 is usually 5 days.
3.What payment methods are accepted for MMBZ27VAL,235?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MMBZ27VAL,235 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MMBZ27VAL,235?
MMBZ27VAL,235 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MMBZ27VAL,235 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MMBZ27VAL,235?
For technical support, including MMBZ27VAL,235 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MMBZ27VAL,235 requirements.
6.How does Aetrix verify that MMBZ27VAL,235 is sourced from the original manufacturer or authorized distributors?
All MMBZ27VAL,235 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MMBZ27VAL,235 meets industry standards.
7.What is the process for return or replacement of MMBZ27VAL,235?
All MMBZ27VAL,235 units undergo pre-shipment inspection (PSI). If there is an issue with MMBZ27VAL,235, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MMBZ27VAL,235 part is unused and in its original packaging.
Return procedure for MMBZ27VAL,235:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MMBZ27VAL,235 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
